Net Income per Share (Tables)

3 Months Ended

Mar. 31, 2012

Net Income per Share [Abstract]

Computation of basic and diluted net income per common share

	Three Months Ended March  31,
	2012		2011
Net income applicable to common shares	$	8,237	$	137
Weighted average number of common shares outstanding		155,543		153,666
Effect of dilutive stock awards		1,004		1,889
Weighted average number of diluted common shares outstanding		156,547		155,555
Basic and diluted net income per share	$	0.05	$	0.00